# What’s New in GetFEM 1.6¶

Released, 2004/01/23:

• GetFEM 1.6 is mostly a bugfix and performance improvements release:
• Some new integration methods were added (high order methods for triangles such as IM_TRIANGLE(19) from P. Solin, K. Segeth and I. Dolezel: Higher-Order & Finite Element Methods, Chapman & Hall/CRC Press, 2003).
• Performance of interpolation and geometric transformation inversion was much improved.
• Support for emc2 meshes.
• The Gmm++ library has been much improved version 1.6 and version 1.5. We have especially focused on its robustness:
• Many bugs were fixed, especially for complex matrices.
• QR algorithms were introduced for dense matrices.
• A LAPACK/ATLAS interface is available.
• SuperLU 2.0 interface.
• Small simplification in linalg_traits structure.
• Generic resize procedures for vector and matrices were introduced.
• It is possible to use a column or row matrix view of a vector with gmm::row_vector and gmm::col_vector.
• Generic gmm::reshape and gmm::conjugated functions.
• Intensive tests with random type of matrices and vectors.